The Devel::Loaded module installs an at-exit handler to generate a dump of all the module files used by a Perl program. If used in conjunction with a perl -c, you find those files loaded in at compile time with use. If you are willing to wait until after the program runs, you can get them all.

This is free software; you can redistribute it and/or modify it under the terms of either: (a) the GNU General Public License as published by the Free Software Foundation; either version 1, or (at your option) any later version, or (b) the Perl "Artistic License". (This is the Perl 5 licensing scheme.)

Please note this is a change from the original pmtools-1.00 (still available on CPAN), as pmtools-1.00 were licensed only under the Perl "Artistic License".